FR2971794B1 - CATHODIC PROTECTION DEVICE AND ASSOCIATED INSTALLATION METHOD - Google Patents

CATHODIC PROTECTION DEVICE AND ASSOCIATED INSTALLATION METHOD

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Publication number
FR2971794B1
FR2971794B1 FR1100530A FR1100530A FR2971794B1 FR 2971794 B1 FR2971794 B1 FR 2971794B1 FR 1100530 A FR1100530 A FR 1100530A FR 1100530 A FR1100530 A FR 1100530A FR 2971794 B1 FR2971794 B1 FR 2971794B1
Authority
FR
France
Prior art keywords
anodic
connection
rectifier
lower casing
generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1100530A
Other languages
French (fr)
Other versions
FR2971794A1 (en
Inventor
Olivier Vanackere
Denis Mondiere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONTROLE ET MAINTENANCE
Original Assignee
CONTROLE ET MAINTENANCE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CONTROLE ET MAINTENANCE filed Critical CONTROLE ET MAINTENANCE
Priority to FR1100530A priority Critical patent/FR2971794B1/en
Publication of FR2971794A1 publication Critical patent/FR2971794A1/en
Application granted granted Critical
Publication of FR2971794B1 publication Critical patent/FR2971794B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)

Abstract

The device (1) comprises a continuous current generator (3) or a rectifier provided with a cathodic connection (4) and an anodic connection (5), and an electrolyte. The cathodic connection connects a negative pole of the rectifier or generator with a metal structure (2) to be protected in an electrolytic medium, and the anodic connection connects a positive pole of the generator or rectifier with an anodic mass. The anodic mass is disposed in a well vertically situated in the electrolytic medium, where the well comprises an upper casing and a lower casing. The device (1) comprises a continuous current generator (3) or a rectifier provided with a cathodic connection (4) and an anodic connection (5), and an electrolyte. The cathodic connection connects a negative pole of the rectifier or generator with a metal structure (2) to be protected in an electrolytic medium, and the anodic connection connects a positive pole of the generator or rectifier with an anodic mass. The anodic mass is disposed in a well vertically situated in the electrolytic medium, where the well comprises an upper casing and a lower casing. The casings have a top end, a bottom end and a circular section, where the top end is made of an insulating material and the bottom end is made of a metallic material. The top and bottom ends are aligned in same axis and connected by a mechanical connection, and comprises a stopper. The anodic mass is further disposed in an interior of the lower casing. The electrolyte ensures an electrical contact between the anodic mass and the lower casing, and includes coke breeze, iron filings and/or water. The mechanical connection is a cuff cover and a pivot connection, and is fixed at the casings by screwing and/or riveting. A length of the upper casing and the lower casing is 50 m and 10-100 m respectively, and a length of the well is = 200 m. An internal diameter of the lower casing is = 30 mm. An INDEPENDENT CLAIM is included for a process for cathodic protection of a metal structure.
FR1100530A 2011-02-22 2011-02-22 CATHODIC PROTECTION DEVICE AND ASSOCIATED INSTALLATION METHOD Active FR2971794B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1100530A FR2971794B1 (en) 2011-02-22 2011-02-22 CATHODIC PROTECTION DEVICE AND ASSOCIATED INSTALLATION METHOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1100530A FR2971794B1 (en) 2011-02-22 2011-02-22 CATHODIC PROTECTION DEVICE AND ASSOCIATED INSTALLATION METHOD

Publications (2)

Publication Number Publication Date
FR2971794A1 FR2971794A1 (en) 2012-08-24
FR2971794B1 true FR2971794B1 (en) 2013-11-08

Family

ID=44544025

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1100530A Active FR2971794B1 (en) 2011-02-22 2011-02-22 CATHODIC PROTECTION DEVICE AND ASSOCIATED INSTALLATION METHOD

Country Status (1)

Country Link
FR (1) FR2971794B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109136938B (en) * 2018-07-23 2020-07-14 北京中冶和坤天冕工程技术有限公司 Cathodic protection and corrosion prevention method for underground pipeline

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388168A (en) * 1980-05-27 1983-06-14 Smith & Denison Low resistance electrode system
US4413679A (en) * 1982-05-07 1983-11-08 Atlantic Richfield Company Wellbore cathodic protection
US4710644A (en) * 1985-10-30 1987-12-01 Corrpro Companies, Inc. Replaceable deep anode system

Also Published As

Publication number Publication date
FR2971794A1 (en) 2012-08-24

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